Wrench



w", .H. WARD.

' WRENCH. APPLICATIONIHLED JUNE-$411919.

PatentedSept, 12,1922.

m B a d 7 WILLIAM: HfWAnn, or Asn'rABuiiA, ii 1 0,1 j

To all whom it may Be it known that citizen of which the following The object of the a new and novel form of use with pipes and the wrench being of a WRENCH.

Application filed June 4, 1919. "Serial Hal-$01,627; I I

concern: WILLIAM H. WARD, a

the United States of America, residing at Ashtabula, in the county of Ashta- 5 bula and State of Ohio, has and useful Improvements in renches, of 1s a specification. invent1on 1s to provide various forms of nuts, character that will permit its firmly gripping the pipe or nut with which it is engaged, the grip increasing as the force on the wrench is increased.

The construction permits the ready release of the wrench from the nut or pipe with which it is engaged.

The invention is illustrated and described in a specific it is not to served to make such embodiment, to which, however, be restricted. The right is rechanges or alterations as the actual reduction to practice may suggest,

in so far as such changes or alterations are compatible in spirit with the annexed claim.

In the accompanying drawings:

Figure 1 is a side improved wrench.

Figure Figure Figure 2.

As shown, two plates 1, of the plates being secured elevational view of the 2 is an edge elevational'view. 3 is a section on the line 3-3 of the invention comprises the shape shown, these two together with a jaw element between them, this jaw element comprising the smooth edge jaw 2 and its attendant shank 8, the

between the two plates and with appropriate fasteners secured together latter being positioned the whole being 4, which pass through the plates and through the shank 3; These fasteners are preferably rivets although it is obvious that screws or bolts may be effectively employed for this purpose. The jaw plates 1 2 projects beyond the and the shank 3 lies adjacent the side edges of the plates and conforms to the shape of the plates at these side edges, the

inner edge of the shank being formed with an arcuate or curved depression 5 ad acent its lower end.

Mounted opposite toothed jaw 6,

the jaw 2 there isa this latter being formed with a shank 7 similar in shape to the shank 3 and having a curved opposite the depressi ever, is mounted for or arcuate depression 8 on 5. This jaw 6, howpivotal movement with invented new wrench adapted for the jaw to tighten the may be placed on the passes and it is apparent that the jaw 6 may Y swing on this pivot member 9. Carried between the two plates and supported on a pivot stud or rivet 10 secured in the two ends a handle 11, this handle being formed at its upper end with a disk like head 12 which. lies between the lower ends of the shanks of the two jaws and'in the depressions 5 and 8. Theswinging of the handle 11 on its pivot stud 10 will obviously operate toswing grip of the jaws on the nut or pipes to which the wrench is attached, and whether the wrench be used for screwing up- 6 towards the jaw 2 and will serve,

or unscrewing a nut or pipe, it can, if,

properly attached to the said nut made to tighten its grip on the same as the force efl'ecting the screwing u or unscrewing operation is increased. bviously the movement of the handle in the opposite di- "rection from that above mentioned will release pressure on the jaw 6 and thereby provide for the effective and ready release of: the wrench from the nut or bolt when desired.

It is to be observed that the jaws, being formed with circular recesses in their shanks embracing the disk like head 12 of the handle will permit a comparatively wide angular movement of the handle before any camming action of the handle will ensue to operate the movable jaw.. The necessity for having a spring in connection with the movable jaw is therefore avoided and the finger or thumb shank of the movable jaw and the shank kept in contact with the disk like head until the jaws of the wrench are engaged with the Work. Then the handle may be grasped and the unscrewing or screwing up operation proceeded with. By this construction, unless the jaws are engaged with the work, the handle only functions to tighten the jaws on the work and there is no appreciable movement of the movable jaw. the disk like head 12, it is not necessary to have the handle in direct alignment with the device in order that the jaws may be or pipe be Furthermore by providing opened their full width, such as would be the case were the wrench constructed on the principle of compound leverage.

, The invention having been described, what 5 is claimed as new and useful is A wrench comprising'a pair of plates, a jaw having a shank mounted between said plates and rigidly secured thereto, a second jaw having a shank pivotally supported between said plates, and a handle formed with 10 a like head and pivotally supported be tween the plates with the pivot concentric with the head the two jaws being formed with recesses 1n their shanks concentric to the head and 'ei'n racing the latter on op- 15 ,posite sides of its center.

In testimony whereof I atfix my signature.

WILLIAM H. WARD. 

